Advertisements
Advertisements
प्रश्न
Are the following statement true or false? Give reason in support of your answer.
The starting point of carbon cycle is the release of carbon dioxide by animals during respiration.
पर्याय
True
False
उत्तर
False
There is no start point or end point in the carbon cycle, the carbon is constantly circulated between the atmosphere and the living organisms.
APPEARS IN
संबंधित प्रश्न
The diagrams given below represent the relationship between a mouse and a physiological process that occurs in green plants. Study the diagrams and answer the questions that follow
(i) Name the physiological process occurring in the green plant that has kept the mouse alive.
(ii) Explain the physiological process mentioned above.
(iii) Why did the mouse die in bell jar B?
(iv) What is the significance of the process as stated in (i) for life on earth?
(v) Represent the above mentioned physiological process in the form of a chemical equation.
Give one example of An aquatic plant used in the laboratory to demonstrate O2 liberation during photosynthesis
Complete the following paragraph by filling in the blank (1) to (5) with appropriate words:
To test a leaf for starch, the leaf is boiled in water to (1) _________. It is then boiled in Methylated spirit to (2) ________. The leaf is dipped in warm water to soften it. It is placed in a petri dish, and (3) _____ solution is added. The region of the leaf which contains starch, turns (4) ________and the region while does not contain starch, turns (5) __________.
The diagram given below represents an experiment to prove the importance of a factor in photosynthesis. Answer the questions that follow : 
Draw a neat, labelled diagram of an experimental steup to show that oxygen is released during photosynthesis
Answer the following:
Give the overall chemical equation of photosynthesis in green plants.
Choose the correct answer:
Which of the following gas is used in photosynthesis?
Choose the correct answer:
The process of photosynthesis occurs by _________
A candidate studied the importance of certain factors in photosynthesis. He took a potted plant and kept in the dark for over 24 hours. In the early hours of the next morning, he covered one of the leaves with black paper in the centre only. Then he placed the plant in sunlight for a few hours and tested the leaf which was covered with black paper for starch.
What aspect of photosynthesis was being investigated?
Photosynthesis is considered as a process supporting all life on earth.
Complete the following sentence with appropriate word:
One of the products of ______of water is oxygen.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
KOH absorbs CO2.
Choose the correct option.
A cell that lacks chloroplast does not ______.
Answer the following question.
Explain why photosynthesis is considered the most important process in the biosphere.
Where does the carbon that is used in photosynthesis come from?
The swollen basal part of the ______ pistil is the which bears the ______.
The raw materials for photosynthesis are ______ and ______.
When iodine solution is added for testing starch, part of the leaf with ______ turns a blue-black color.
Define photosynthesis.
Given below are groups of terms. The first pair indicates the relationship between the two terms. Complete the second pair accordingly.
Producers : Autotrophs : : Consumers : ______
Define the following term:
Photolysis of water
